Road Atlases from Map Metrics evolved from our work providing address data for Enhanced 911 Systems in NE Washington. Pend Oreille was our first county in 1995-6. This is the 18th edition of this book. Current Version, June 2018. It includes 300 new or changed roads. Standard data includes: expanded pages of high-population areas, place names, lake and river names, GPS grid, Forest Service Roads, unnamed roads traced from aerial photography, section and township lines.